eF-site ID 4iuz-AB PDB Code 4iuz Chain A, B click to enlarge Title High resolution crystal structure of racemic ester insulin Classification HORMONE PRECURSOR Compound Insulin A chain Source Homo sapiens (Human) (INS_HUMAN) Sequence A:  GIVEQCCTSICSLYQLENYCN B:  FVNQHLCGSDLVEALYLVCGERGFFYTKPT Description Functional site 1) chain A residue 17 type sequence E description BINDING SITE FOR RESIDUE PEG B 101 source : AC1 2) chain A residue 20 type sequence C description BINDING SITE FOR RESIDUE PEG B 101 source : AC1 3) chain B residue 18 type sequence V description BINDING SITE FOR RESIDUE PEG B 101 source : AC1 4) chain B residue 22 type sequence R description BINDING SITE FOR RESIDUE PEG B 101 source : AC1 5) chain A residue 15 type sequence Q description BINDING SITE FOR RESIDUE GOL B 102 source : AC2 6) chain B residue 8 type sequence G description BINDING SITE FOR RESIDUE GOL B 102 source : AC2 7) chain B residue 9 type sequence S description BINDING SITE FOR RESIDUE GOL B 102 source : AC2 8) chain B residue 26 type sequence Y description BINDING SITE FOR RESIDUE GOL B 102 source : AC2 9) chain A residue 7 type sequence C description BINDING SITE FOR RESIDUE PEG B 103 source : AC3 10) chain B residue 8 type sequence G description BINDING SITE FOR RESIDUE PEG B 103 source : AC3 11) chain A residue 6-20 type prosite sequence CCTSICSLYQLENYC description INSULIN Insulin family signature. CCTSiCSlyqLenyC source prosite : PS00262

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